./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 168748c0c54c019ef253d55ab380d3a197e2401ba990ef8210cb41b73a41cb13 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:14:59,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:14:59,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:14:59,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:14:59,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:14:59,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:14:59,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:14:59,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:14:59,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:14:59,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:14:59,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:14:59,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:14:59,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:14:59,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:14:59,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:14:59,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:14:59,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:14:59,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:14:59,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:14:59,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:14:59,160 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:14:59,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:14:59,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:14:59,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:14:59,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:14:59,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:14:59,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:14:59,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:14:59,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:14:59,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:14:59,182 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:14:59,183 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:14:59,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:14:59,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:14:59,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:14:59,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:14:59,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:14:59,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:14:59,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:14:59,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:14:59,192 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:14:59,193 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-11-20 06:14:59,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:14:59,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:14:59,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:14:59,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:14:59,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:14:59,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:14:59,247 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:14:59,247 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:14:59,247 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:14:59,248 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:14:59,249 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:14:59,249 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:14:59,249 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:14:59,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:14:59,250 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:14:59,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:14:59,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:14:59,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:14:59,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:14:59,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:14:59,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:14:59,251 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:14:59,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:14:59,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:14:59,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:14:59,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:14:59,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:14:59,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:14:59,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:14:59,256 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:14:59,257 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 168748c0c54c019ef253d55ab380d3a197e2401ba990ef8210cb41b73a41cb13 [2021-11-20 06:14:59,602 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:14:59,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:14:59,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:14:59,632 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:14:59,634 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:14:59,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i [2021-11-20 06:14:59,710 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/data/0b083b3e6/76c2d0130f584899afeefe2776d5e02b/FLAGf7d951ddd [2021-11-20 06:15:00,259 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:15:00,260 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/sv-benchmarks/c/termination-15/cstrlen_reverse_alloca.i [2021-11-20 06:15:00,279 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/data/0b083b3e6/76c2d0130f584899afeefe2776d5e02b/FLAGf7d951ddd [2021-11-20 06:15:00,542 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/data/0b083b3e6/76c2d0130f584899afeefe2776d5e02b [2021-11-20 06:15:00,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:15:00,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:15:00,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:15:00,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:15:00,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:15:00,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:15:00" (1/1) ... [2021-11-20 06:15:00,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d9d03a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:00, skipping insertion in model container [2021-11-20 06:15:00,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:15:00" (1/1) ... [2021-11-20 06:15:00,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:15:00,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:15:00,928 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:15:00,936 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:15:00,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:15:01,008 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:15:01,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01 WrapperNode [2021-11-20 06:15:01,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:15:01,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:15:01,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:15:01,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:15:01,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,051 INFO L137 Inliner]: procedures = 152, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2021-11-20 06:15:01,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:15:01,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:15:01,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:15:01,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:15:01,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,072 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:15:01,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:15:01,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:15:01,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:15:01,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (1/1) ... [2021-11-20 06:15:01,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:15:01,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:15:01,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:15:01,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:15:01,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 06:15:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 06:15:01,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 06:15:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 06:15:01,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:15:01,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:15:01,289 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:15:01,301 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:15:01,428 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:15:01,433 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:15:01,434 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-20 06:15:01,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:15:01 BoogieIcfgContainer [2021-11-20 06:15:01,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:15:01,437 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:15:01,437 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:15:01,441 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:15:01,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:15:01,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:15:00" (1/3) ... [2021-11-20 06:15:01,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a400afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:15:01, skipping insertion in model container [2021-11-20 06:15:01,444 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:15:01,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:15:01" (2/3) ... [2021-11-20 06:15:01,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7a400afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:15:01, skipping insertion in model container [2021-11-20 06:15:01,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:15:01,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:15:01" (3/3) ... [2021-11-20 06:15:01,446 INFO L388 chiAutomizerObserver]: Analyzing ICFG cstrlen_reverse_alloca.i [2021-11-20 06:15:01,497 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:15:01,497 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:15:01,498 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:15:01,498 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:15:01,498 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:15:01,498 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:15:01,498 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:15:01,499 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:15:01,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:15:01,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:15:01,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:15:01,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:15:01,558 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-20 06:15:01,558 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:15:01,558 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:15:01,559 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:15:01,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-11-20 06:15:01,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:15:01,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:15:01,561 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-11-20 06:15:01,561 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-11-20 06:15:01,568 INFO L791 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet207#1, main_#t~malloc208#1.base, main_#t~malloc208#1.offset, main_#t~ret209#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet207#1;havoc main_#t~nondet207#1; 12#L373true assume !(main_~length1~0#1 < 1); 10#L373-2true call main_#t~malloc208#1.base, main_#t~malloc208#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc208#1.base, main_#t~malloc208#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset, 1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset, cstrlen_#t~mem205#1, cstrlen_~s#1.base, cstrlen_~s#1.offset, cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~s#1.base, cstrlen_~s#1.offset := cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_~s#1.base, cstrlen_~s#1.offset; 3#L367-3true [2021-11-20 06:15:01,568 INFO L793 eck$LassoCheckResult]: Loop: 3#L367-3true call cstrlen_#t~mem205#1 := read~int(cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset, 1); 11#L367-1true assume !!(0 != cstrlen_#t~mem205#1);havoc cstrlen_#t~mem205#1;cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset := cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset - 1;havoc cstrlen_#t~post206#1.base, cstrlen_#t~post206#1.offset; 3#L367-3true [2021-11-20 06:15:01,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:15:01,586 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-11-20 06:15:01,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:15:01,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770603758] [2021-11-20 06:15:01,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:15:01,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:15:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:15:01,696 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:15:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:15:01,738 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:15:01,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:15:01,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2021-11-20 06:15:01,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:15:01,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186766501] [2021-11-20 06:15:01,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:15:01,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:15:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:15:01,753 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:15:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:15:01,763 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:15:01,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:15:01,766 INFO L85 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2021-11-20 06:15:01,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:15:01,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422831377] [2021-11-20 06:15:01,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:15:01,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:15:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:15:01,799 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:15:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:15:01,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:15:02,354 INFO L210 LassoAnalysis]: Preferences: [2021-11-20 06:15:02,354 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-11-20 06:15:02,355 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-11-20 06:15:02,355 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-11-20 06:15:02,355 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-11-20 06:15:02,355 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:15:02,355 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-11-20 06:15:02,356 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-11-20 06:15:02,356 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen_reverse_alloca.i_Iteration1_Lasso [2021-11-20 06:15:02,356 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-11-20 06:15:02,357 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-11-20 06:15:02,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,641 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-11-20 06:15:02,973 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-11-20 06:15:02,977 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-11-20 06:15:02,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:15:02,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:15:02,987 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:15:02,990 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:15:03,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:15:03,000 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:15:03,000 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:15:03,000 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:15:03,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-11-20 06:15:03,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:15:03,008 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:15:03,022 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:15:03,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-11-20 06:15:03,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:15:03,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:15:03,045 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:15:03,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-11-20 06:15:03,064 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:15:03,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:15:03,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:15:03,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:15:03,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:15:03,081 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:15:03,081 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:15:03,123 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:15:03,167 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:15:03,168 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:15:03,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:15:03,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:15:03,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-11-20 06:15:03,185 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:15:03,194 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:15:03,194 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-11-20 06:15:03,194 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:15:03,194 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2021-11-20 06:15:03,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:15:03,196 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-11-20 06:15:03,196 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-11-20 06:15:03,227 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:15:03,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:15:03,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:15:03,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:15:03,278 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:15:03,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-11-20 06:15:03,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:15:03,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:15:03,293 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:15:03,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:15:03,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:15:03,297 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:15:03,297 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:15:03,312 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:15:03,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-11-20 06:15:03,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:15:03,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:15:03,350 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:15:03,356 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:15:03,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:15:03,366 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:15:03,366 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:15:03,366 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:15:03,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:15:03,375 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:15:03,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-11-20 06:15:03,403 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-11-20 06:15:03,435 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-11-20 06:15:03,436 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:15:03,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:15:03,437 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:15:03,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-11-20 06:15:03,440 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-11-20 06:15:03,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-11-20 06:15:03,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-11-20 06:15:03,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-11-20 06:15:03,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-11-20 06:15:03,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-11-20 06:15:03,461 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-11-20 06:15:03,487 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-11-20 06:15:03,542 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-11-20 06:15:03,542 INFO L444 ModelExtractionUtils]: 18 out of 28 variables were initially zero. Simplification set additionally 7 variables to zero. [2021-11-20 06:15:03,544 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:15:03,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:15:03,552 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:15:03,569 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-11-20 06:15:03,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-11-20 06:15:03,592 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-11-20 06:15:03,592 INFO L513 LassoAnalysis]: Proved termination. [2021-11-20 06:15:03,593 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc208#1.base)_1) = 2*ULTIMATE.start_cstrlen_~p~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc208#1.base)_1 Supporting invariants [] [2021-11-20 06:15:03,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-11-20 06:15:03,639 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-11-20 06:15:03,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:15:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:03,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:15:03,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:15:03,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:15:03,749 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-20 06:15:03,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:15:03,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:15:03,831 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-11-20 06:15:03,832 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:15:03,896 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 20 states and 23 transitions. Complement of second has 6 states. [2021-11-20 06:15:03,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-11-20 06:15:03,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:15:03,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-11-20 06:15:03,910 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2021-11-20 06:15:03,911 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:15:03,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 2 letters. [2021-11-20 06:15:03,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:15:03,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2021-11-20 06:15:03,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-11-20 06:15:03,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-11-20 06:15:03,918 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:15:03,920 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2021-11-20 06:15:03,921 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-11-20 06:15:03,921 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-11-20 06:15:03,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-11-20 06:15:03,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:15:03,922 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:15:03,922 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:15:03,922 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:15:03,922 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 06:15:03,923 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:15:03,923 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-11-20 06:15:03,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-11-20 06:15:03,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:15:03 BoogieIcfgContainer [2021-11-20 06:15:03,930 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:15:03,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:15:03,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:15:03,934 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:15:03,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:15:01" (3/4) ... [2021-11-20 06:15:03,937 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 06:15:03,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:15:03,939 INFO L158 Benchmark]: Toolchain (without parser) took 3391.91ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 65.5MB in the beginning and 49.1MB in the end (delta: 16.5MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2021-11-20 06:15:03,940 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:15:03,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.29ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 66.0MB in the end (delta: -592.5kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:15:03,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.21ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:15:03,947 INFO L158 Benchmark]: Boogie Preprocessor took 23.17ms. Allocated memory is still 100.7MB. Free memory was 64.0MB in the beginning and 63.0MB in the end (delta: 979.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:15:03,947 INFO L158 Benchmark]: RCFGBuilder took 360.58ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 53.5MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-20 06:15:03,949 INFO L158 Benchmark]: BuchiAutomizer took 2492.77ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 49.1MB in the end (delta: 4.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2021-11-20 06:15:03,950 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 121.6MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:15:03,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 53.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.29ms. Allocated memory is still 100.7MB. Free memory was 65.4MB in the beginning and 66.0MB in the end (delta: -592.5kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.21ms. Allocated memory is still 100.7MB. Free memory was 66.0MB in the beginning and 64.0MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.17ms. Allocated memory is still 100.7MB. Free memory was 64.0MB in the beginning and 63.0MB in the end (delta: 979.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.58ms. Allocated memory is still 100.7MB. Free memory was 62.7MB in the beginning and 53.5MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2492.77ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 53.5MB in the beginning and 49.1MB in the end (delta: 4.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 121.6MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca(length1 * sizeof(char))] + 2 * p and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 6 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital117 mio100 ax100 hnf100 lsp94 ukn93 mio100 lsp47 div100 bol100 ite100 ukn100 eq193 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-11-20 06:15:04,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-11-20 06:15:04,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f79ee0bc-b028-40d6-a5cf-d35bb8f60384/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE